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<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_7b0469299ccbf4a3a403496996173710.html">sys</a></div>
<h1>video.c</h1><a href="video_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002-2005 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment"> permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment"> conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment"> form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment"> disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment"> with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment"> contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment"> without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment"> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment"> THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment"> SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment"> OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment"> HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment"> TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id: video_8c-source.html 88 2016-01-12 00:11:29Z reddawg $</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="io_8h.html">sys/io.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="video_8h.html">sys/video.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="types_8h.html">ubixos/types.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="tty_8h.html">ubixos/tty.h</a>></span>
<a name="l00035"></a>00035
<a name="l00036"></a><a class="code" href="video_8c.html#47ec71507e9b790e7dfdd9e641c4541f">00036</a> <span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *<a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a> = (<span class="keywordtype">char</span> *)0xB8000;
<a name="l00037"></a><a class="code" href="video_8c.html#a6d08b2dd961295607e6a5d52f1d471e">00037</a> <span class="keywordtype">int</span> <a class="code" href="video_8h.html#a6d08b2dd961295607e6a5d52f1d471e">printColor</a> = <a class="code" href="video_8h.html#2984c3db0ad3a4a571a8ee0b4d2fe90b">defaultColor</a>;
<a name="l00038"></a>00038
<a name="l00039"></a>00039
<a name="l00040"></a><a class="code" href="video_8c.html#05d079fd6b2d61320ad423e5c918903c">00040</a> <span class="keywordtype">void</span> <a class="code" href="video_8h.html#05d079fd6b2d61320ad423e5c918903c">backSpace</a>() {
<a name="l00041"></a>00041 <a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> bufferOffset = 0x0;
<a name="l00042"></a>00042 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3d4, 0x0e);
<a name="l00043"></a>00043 bufferOffset = <a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3d5);
<a name="l00044"></a>00044 bufferOffset <<= 0x8; <span class="comment">/* Shift Address Left 8 Bits */</span>
<a name="l00045"></a>00045 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3d4, 0x0f);
<a name="l00046"></a>00046 bufferOffset += <a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3d5);
<a name="l00047"></a>00047 bufferOffset <<= 0x1; <span class="comment">/* Shift Address Left 1 Bits */</span>
<a name="l00048"></a>00048 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[bufferOffset--] = 0x20;
<a name="l00049"></a>00049 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[bufferOffset--] = <a class="code" href="video_8h.html#a6d08b2dd961295607e6a5d52f1d471e">printColor</a>;
<a name="l00050"></a>00050 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[bufferOffset] = 0x20;
<a name="l00051"></a>00051 bufferOffset >>= 0x1;
<a name="l00052"></a>00052 <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="structtty__termNode.html#b4da0597e471d572404510d113cf91a9">tty_x</a> = (bufferOffset & 0xFF);
<a name="l00053"></a>00053 <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="structtty__termNode.html#6c5b9052e1368205622f7dad04ab815b">tty_y</a> = (bufferOffset >> 0x8);
<a name="l00054"></a>00054 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);
<a name="l00055"></a>00055 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="structtty__termNode.html#b4da0597e471d572404510d113cf91a9">tty_x</a>);
<a name="l00056"></a>00056 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);
<a name="l00057"></a>00057 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="structtty__termNode.html#6c5b9052e1368205622f7dad04ab815b">tty_y</a>);
<a name="l00058"></a>00058 <span class="keywordflow">return</span>;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordtype">void</span>
<a name="l00062"></a><a class="code" href="video_8c.html#5429378b96a24fadfd2d1f8d777eb95a">00062</a> <a class="code" href="video_8h.html#5429378b96a24fadfd2d1f8d777eb95a">kprint</a>(<span class="keywordtype">char</span> *string)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufferOffset = 0x0, character = 0x0, i = 0x0;
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">/* Short circuit if we're in tty mode */</span>
<a name="l00068"></a>00068 <span class="keywordflow">if</span> (<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> != <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>)
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <a class="code" href="tty_8h.html#d96f57a7c113d3cfa76ee5fed6de33c0">tty_print</a>(string,<a class="code" href="tty_8h.html#4f96ccac7e60296ef496008d8cbed0ff">tty_find</a>(0));
<a name="l00071"></a>00071 <span class="keywordflow">return</span>;
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="comment">/* We Need To Get The Y Position */</span>
<a name="l00075"></a>00075 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);
<a name="l00076"></a>00076 bufferOffset = <a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3D5);
<a name="l00077"></a>00077 bufferOffset <<= 8; <span class="comment">/* Shift Address Left 8 Bits */</span>
<a name="l00078"></a>00078 <span class="comment">/* Then We Need To Add The X Position */</span>
<a name="l00079"></a>00079 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);
<a name="l00080"></a>00080 bufferOffset += <a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3D5);
<a name="l00081"></a>00081 bufferOffset <<= 1; <span class="comment">/* Shift Address Left 1 Bits */</span>
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordflow">while</span> ((character = *string++)) {
<a name="l00084"></a>00084 <span class="keywordflow">switch</span> (character) {
<a name="l00085"></a>00085 <span class="keywordflow">case</span> <span class="charliteral">'\n'</span>:
<a name="l00086"></a>00086 bufferOffset = (bufferOffset / 160) * 160 + 160;
<a name="l00087"></a>00087 <span class="keywordflow">break</span>;
<a name="l00088"></a>00088 <span class="keywordflow">default</span>:
<a name="l00089"></a>00089 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[bufferOffset++] = character;
<a name="l00090"></a>00090 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[bufferOffset++] = <a class="code" href="video_8h.html#a6d08b2dd961295607e6a5d52f1d471e">printColor</a>;
<a name="l00091"></a>00091 <span class="keywordflow">break</span>;
<a name="l00092"></a>00092 } <span class="comment">/* switch */</span>
<a name="l00093"></a>00093 <span class="comment">/* Check To See If We Are Out Of Bounds */</span>
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (bufferOffset >= 160 * 25) {
<a name="l00095"></a>00095 <span class="keywordflow">for</span> (i = 0; i < 160 * 24; i++) {
<a name="l00096"></a>00096 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[i] = <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[i + 160];
<a name="l00097"></a>00097 } <span class="comment">/* for */</span>
<a name="l00098"></a>00098 <span class="keywordflow">for</span> (i = 0; i < 80; i++) {
<a name="l00099"></a>00099 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[(160 * 24) + (i * 2)] = 0<a class="code" href="start_8S.html#62df326d54f8b2ece412319c4360ef3e">x20</a>;
<a name="l00100"></a>00100 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[(160 * 24) + (i * 2) + 1] = <a class="code" href="video_8h.html#a6d08b2dd961295607e6a5d52f1d471e">printColor</a>;
<a name="l00101"></a>00101 } <span class="comment">/* for */</span>
<a name="l00102"></a>00102 bufferOffset -= 160;
<a name="l00103"></a>00103 } <span class="comment">/* if */</span>
<a name="l00104"></a>00104 } <span class="comment">/* while */</span>
<a name="l00105"></a>00105 bufferOffset >>= 1; <span class="comment">/* Set the new cursor position */</span>
<a name="l00106"></a>00106 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);
<a name="l00107"></a>00107 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, ((bufferOffset & 0x0ff) & 0xFF));
<a name="l00108"></a>00108 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);
<a name="l00109"></a>00109 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, ((bufferOffset >> 8) & 0xFF));
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keywordflow">return</span>;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="comment">/* Clears The Screen */</span>
<a name="l00115"></a><a class="code" href="video_8c.html#9d7e8af417b6d543da691e9c0e2f6f9f">00115</a> <span class="keywordtype">void</span> <a class="code" href="video_8h.html#9d7e8af417b6d543da691e9c0e2f6f9f">clearScreen</a>() {
<a name="l00116"></a>00116 <span class="keywordtype">short</span> i = 0x0;
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keywordflow">for</span> (i = 0x0; i < (80 * 25); i++) {
<a name="l00119"></a>00119 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[i * 2] = 0<a class="code" href="start_8S.html#62df326d54f8b2ece412319c4360ef3e">x20</a>;
<a name="l00120"></a>00120 <a class="code" href="systemtask_8c.html#47ec71507e9b790e7dfdd9e641c4541f">videoBuffer</a>[i * 2 + 1] = <a class="code" href="video_8h.html#2984c3db0ad3a4a571a8ee0b4d2fe90b">defaultColor</a>;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);
<a name="l00123"></a>00123 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, 0);
<a name="l00124"></a>00124 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);
<a name="l00125"></a>00125 <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, 0);
<a name="l00126"></a>00126 }
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="comment">/***</span>
<a name="l00129"></a>00129 <span class="comment"> END</span>
<a name="l00130"></a>00130 <span class="comment"> ***/</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Dec 15 11:18:55 2006 for UbixOS V2 by
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